I am making a life simulation where the player needs to gather all documents necessary to apply for a work permit. Documents need to be requested at different offices with different opening hours and each document has a certain processing time. The processing time and opening hours are in real time. Oh - and there is no saving. I estimate that it has a play time of around 168 hours - depending on what day of the week you start playing it. I cant wait to see the first speed runs.
Other Ideas I had: real time 24h of Le Mans Management game, 2h long autoscroll platformer, any game but with an unskippable hour long opening cinematic, an RPG where you have to do a few dozen fetch quests to start with just so you can afford your first basic weapon in the shop. I feel like my brain is fueled by spite and the passionate to torture gamers...